把下列字母重新组合成疑问代词,并把它们填入句子中。 h c w i h woh oeshw h a w t (1) ________ is on duty today? (2) —________ book is this? —Sorry, I don’t know. (3) ________ one is your mother? (4)一________ colour is your new car? — It’s red.
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